Event.observe(window, 'load', function() {
    
    // search collapse
    var collapseable = document.getElementsByClassName('collapse');
    for(i = 0 ;i < collapseable.length; i++){
        obj = collapseable[i];
        var elements = obj.immediateDescendants();
        var legend = elements[0];
        var contents = elements[1];
        var state = elements[2];

        if (!state) return;
        if (state.value == '1')
            Element.hide(contents);

        Event.observe(legend, 'click', function() {
            if (contents.style.display == '') {
                state.value = '1';
                Effect.BlindUp(contents, { duration: .2 });
                $(legend).removeClassName('active');
            }
            else {
                state.value = '0';
                Effect.BlindDown(contents, { duration: .2 });
                $(legend).addClassName('active');
            }
        });
    }    

    // promo rotator
    var promos = document.getElementsByClassName('promo');
    if (promos.length > 0)
        getRandomElementFrom(promos).style.display = 'inline';


    // print tool tip
    var halpcontent = $('halpcontent');
    if (halpcontent) {
        var tip = new Tip('halp', halpcontent.innerHTML,
		{
		    title: 'Printing Tips',
		    className: 'silver',
		    showOn: 'mouseover',
		    effect: 'appear',
		    hideOn:
			{
			    element: '.close',
			    event: 'mouseover'
			},
		    hook: { target: 'topLeft', tip: 'topRight' },
		    offset: { x: -3, y: 0 },
		    fixed: true,
		    closeButton: true
		});
    }


    // scroll animation		
    $$('a[href*="#"]').each(function(anchor) {
        anchor.observe('click', function(event) {
            var pageAnchor = $$('a[name~="#{href}"]'.interpolate({ href: this.href.split('#')[1] })).first();
            if (pageAnchor) {
                var delta = pageAnchor.offsetTop - document.viewport.getScrollOffsets().top;
                var updateUrl = function() { location.href = this.href } .bind(this);
                new Effect.Scroll(window, { y: delta, afterFinish: updateUrl, duration: 0.4 });
                Event.stop(event);
            }
        });
    });

});

function getRandomElementFrom(elements) 
{
    return elements[Math.floor((Math.random() * elements.length))];
}

// used by the media filter to select list items by the geographical group
function selectMedia(formElement, mediaToSelect, doSelect)
{
	if (formElement)
	{
		$A(formElement.options).each(function(option)
		{
			formElement.options[0].selected = false;
			$A(mediaToSelect).find(function(media)
			{
				var found = false;				
				if (media == option.value)
				{
					found = true;
					option.selected = doSelect;
				}
				
				return found;				
			});
		});
	}
}

// following code is MIT licensed (C) Gary Haran 2007

/**
* Provide the same behavior as window.scrollTo to divs with overflow without removing
* the ability to scroll a page to a given element.
*/
Element.addMethods({
  scrollTo: function(element, left, top){
    var element = $(element);
    if (arguments.length == 1){
      var pos = element.cumulativeOffset();
      window.scrollTo(pos[0], pos[1]);
    } else {
      element.scrollLeft = left;
      element.scrollTop  = top;
    }
    return element;
  }
});

/**
* Effect.Scroll allows you to animate scrolling on a page (or div w/ overflow: scroll || auto)
*/
Effect.Scroll = Class.create();
Object.extend(Object.extend(Effect.Scroll.prototype, Effect.Base.prototype), {
  initialize: function(element) {
    this.element = $(element);
    if(!this.element) throw(Effect._elementDoesNotExistError);
    this.start(Object.extend({x: 0, y: 0}, arguments[1] || {}));
  },
  setup: function() {
    var scrollOffsets = (this.element == window) 
                ? document.viewport.getScrollOffsets() 
                : Element._returnOffset(this.element.scrollLeft, this.element.scrollTop) ;
    this.originalScrollLeft = scrollOffsets.left;
    this.originalScrollTop  = scrollOffsets.top;
  },
  update: function(pos) {
    this.element.scrollTo(Math.round(this.options.x * pos + this.originalScrollLeft), Math.round(this.options.y * pos + this.originalScrollTop));
  }
});